秸秆深翻还田对吉林省东部玉米幼苗生长的影响

Effects of straw returning with deep plowing on the growth of maize seedling in the eastern Jilin Province

秸秆深翻还田显著影响土壤性状,但作为玉米秸秆还田的重要方式之一,秸秆深翻还田是否影响玉米幼苗根系和地上部的生长还有待深入研究。因此,本文研究了吉林省东部湿润冷凉地区秸秆深翻还田条件下4个玉米品种(鸿福玉1号,德美亚1号,先达101和先玉1219)苗期地上部和根系性状,包括玉米幼苗的株高、根系数量、绿叶面积、叶片SPAD值以及干物质质量等。研究结果显示,与未秸秆深翻还田处理相比较,秸秆深翻还田条件下4个供试玉米品种幼苗的株高、先达101和先玉1219地上部干物重以及德美亚1号的根系数量均显著增加。而4个品种玉米叶片的绿叶面积和SPAD值并未受到显著影响。

Field experiments were conducted to study the seedling height,green leaf area,leaf SPAD value,dry matter quality and root quantity of four varieties of maize under maize straw returning in the areas of eastern Jilin Province.The results showed that compared with the treatment without straw returning,the plant height of maize was significantly increased,root number of Demeiya 1 was significantly increased,and the seedling shoot dry weight of Xianda 101 and Xianyu 1219 was significantly increased.However,the green leaf area and SPAD value of maize varieties were not significantly affected.